That's great. Actually, at the end of July Google made a change with the way the Google Assistant stores your user profile. This broke the existing links which had already been set up. If you had started a conversation by saying "Ok Google, talk to Sequematic" it would have stepped you through the linking process again, but a direct command such as "Ask Sequematic to run the leaving sequence" probably skipped that.
I'm glad you have it working now.